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COLUMBIA - BLO ROCK ISLAND DAM
(
RISW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-01-09
Issued:
2026-01-09
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
58240
69554
103
81066
67524
APR-JUL
48724
59121
101
68918
58256
JAN-SEP
70128
81553
105
93833
77708
JAN-JUL
60248
71315
104
80707
68440
OCT-SEP
82778
94203
108
106483
87167
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-01-09
Issued:
2026-01-09
Hide Forecast
APR-SEP
58872
70210
104
82248
67524
APR-JUL
49385
59949
103
70843
58256
JAN-SEP
70954
82559
106
95946
77708
JAN-JUL
61058
73050
107
84688
68440
OCT-SEP
83605
95209
109
108596
87167
Reference
ESP with 0 Days QPF
Ensemble:
2026-01-09
Issued:
2026-01-09
Hide Forecast
APR-SEP
58798
72325
107
83986
67524
APR-JUL
49411
60819
104
72274
58256
JAN-SEP
70880
84991
109
97077
77708
JAN-JUL
61182
73781
108
86422
68440
OCT-SEP
83531
97642
112
109727
87167
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 224, 298, 354, 411, 437, 75, , 79
ESP10, 219, 295, 348, 406, 432, 81, , 85
ESP10, 222, 303, 353, 409, 437, 88, , 92
ESP10, 222, 303, 353, 407, 436, 94, , 98
ESP10, 223, 302, 353, 404, 433, 101, , 105
ESP10, 221, 300, 352, 402, 433, 107, , 111
ESP10, 227, 303, 353, 403, 436, 114, , 118
ESP10, 230, 306, 358, 405, 437, 121, , 125
ESP10, 231, 308, 360, 406, 438, 127, , 131
ESP10, 228, 308, 357, 404, 437, 134, , 138
ESP10, 228, 315, 360, 406, 437, 140, , 144
ESP10, 226, 317, 359, 407, 437, 147, , 151
ESP10, 220, 310, 352, 401, 432, 153, , 157
ESP10, 222, 312, 355, 406, 435, 160, , 164
ESP10, 222, 310, 352, 402, 434, 167, , 171
ESP10, 209, 299, 338, 390, 425, 173, , 177
ESP10, 199, 290, 329, 381, 414, 180, , 184
ESP10, 209, 300, 343, 393, 425, 186, , 190
ESP10, 210, 301, 347, 396, 428, 193, , 197
ESP10, 210, 301, 347, 398, 431, 199, , 203
ESP10, 200, 292, 339, 389, 421, 206, , 210
ESP10, 201, 292, 338, 395, 420, 213, , 217
ESP10, 193, 289, 333, 390, 419, 219, , 223
ESP10, 202, 298, 345, 400, 428, 226, , 230
ESP10, 206, 302, 350, 406, 431, 232, , 236
ESP10, 211, 311, 354, 410, 435, 239, , 243
ESP10, 213, 308, 355, 408, 435, 245, , 249
ESP10, 214, 311, 354, 409, 436, 252, , 256
ESP10, 204, 305, 345, 403, 427, 258, , 262
ESP10, 189, 293, 332, 391, 416, 265, , 269
ESP10, 188, 292, 335, 390, 420, 272, , 276
ESP10, 193, 295, 340, 398, 427, 278, , 282
ESP10, 190, 293, 338, 394, 428, 285, , 289
ESP10, 201, 306, 348, 403, 437, 291, , 295
ESP10, 209, 307, 349, 403, 438, 298, , 302
ESP10, 210, 305, 350, 402, 436, 304, , 308
ESP10, 212, 303, 349, 399, 438, 311, , 315
ESP10, 209, 297, 344, 391, 430, 318, , 322
ESP10, 215, 303, 352, 396, 437, 324, , 328
ESP10, 212, 304, 355, 391, 437, 331, , 335
ESP10, 215, 306, 354, 393, 438, 337, , 341
ESP10, 220, 306, 353, 398, 437, 344, , 348
ESP10, 232, 312, 363, 404, 444, 350, , 354
ESP10, 245, 317, 369, 406, 450, 357, , 361
ESP10, 239, 312, 361, 399, 440, 364, , 368
ESP10, 248, 318, 366, 404, 446, 370, , 374
ESP10, 240, 310, 357, 396, 440, 377, , 381
ESP10, 248, 315, 366, 401, 449, 383, , 387
ESP10, 243, 309, 361, 400, 446, 390, , 394
ESP10, 247, 313, 366, 401, 449, 396, , 400
ESP10, 248, 312, 366, 400, 449, 403, , 407
ESP10, 249, 317, 362, 399, 447, 410, , 414
ESP10, 246, 318, 362, 397, 442, 416, , 420
ESP10, 256, 329, 371, 409, 450, 423, , 427
ESP10, 252, 322, 366, 408, 447, 429, , 433
ESP10, 255, 320, 363, 408, 446, 436, , 440
ESP10, 252, 314, 358, 403, 442, 442, , 446
ESP10, 252, 313, 359, 404, 440, 449, , 453
ESP10, 253, 316, 365, 410, 442, 456, , 460
ESP10, 244, 305, 354, 401, 432, 462, , 466
ESP10, 233, 294, 344, 390, 423, 469, , 473
ESP10, 238, 298, 346, 393, 429, 475, , 479
ESP10, 230, 289, 341, 387, 420, 482, , 486
ESP10, 215, 269, 322, 366, 408, 488, , 492
ESP10, 216, 271, 327, 366, 412, 495, , 499
ESP10, 211, 266, 322, 360, 407, 502, , 506
ESP10, 222, 277, 333, 373, 419, 508, , 512
ESP10, 205, 260, 319, 358, 405, 515, , 519
ESP10, 177, 233, 289, 330, 382, 521, , 525
ESP10, 169, 227, 283, 319, 373, 528, , 532
ESP10, 168, 230, 284, 319, 373, 534, , 538
ESP10, 174, 242, 293, 327, 382, 541, , 545
ESP10, 175, 242, 298, 329, 386, 548, , 552
ESP10, 170, 233, 292, 322, 378, 554, , 558
ESP10, 175, 231, 293, 322, 377, 561, , 565
ESP10, 183, 231, 298, 323, 380, 567, , 571
ESP10, 184, 231, 302, 322, 384, 574, , 578
ESP10, 182, 231, 299, 319, 381, 580, , 584
ESP10, 177, 226, 294, 315, 376, 587, , 591
ESP10, 179, 227, 287, 309, 369, 593, , 597
ESP10, 192, 236, 293, 317, 375, 600, , 604
ESP10, 199, 236, 291, 316, 373, 607, , 611
ESP10, 212, 246, 300, 327, 383, 613, , 617
ESP10, 217, 250, 303, 336, 387, 620, , 624
ESP10, 212, 242, 300, 331, 383, 626, , 630
ESP10, 208, 237, 296, 328, 381, 633, , 637
ESP10, 213, 241, 297, 330, 383, 639, , 643
ESP10, 219, 247, 300, 335, 395, 646, , 650
ESP10, 216, 246, 297, 337, 394, 653, , 657
ESP10, 218, 248, 299, 338, 393, 659, , 663
ESP10, 224, 262, 307, 344, 396, 666, , 670
ESP10, 223, 261, 306, 341, 392, 672, , 676
ESP10, 219, 256, 305, 335, 388, 679, , 683
ESP10, 220, 259, 308, 336, 390, 685, , 689
ESP10, 212, 256, 300, 329, 384, 692, , 696
ESP10, 210, 264, 301, 330, 385, 699, , 703
ESP10, 211, 264, 303, 330, 386, 705, , 709
ESP10, 210, 267, 300, 333, 384, 712, , 716
ESP10, 212, 270, 300, 333, 380, 718, , 722
ESP10, 215, 267, 296, 335, 376, 725, , 729
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/RISW1W_SQIN.ESPF10.csv
RISW1W_SQIN.ESPF0.csv|2026-01-09
RISW1W_SQIN.ESPF10.csv|2026-01-09
RISW1W_SQIN.ESPFM.csv|2026-01-09
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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